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1 /*
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2 * Copyright 2002 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 package sun.jvm.hotspot.asm.sparc;
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26
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27 import sun.jvm.hotspot.asm.*;
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28
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29 public abstract class SPARCV9PrivilegedRegisterInstruction extends SPARCInstruction
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30 implements SPARCV9Instruction, /* imports */ SPARCV9PrivilegedRegisters {
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31 protected static final String regNames[] = {
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32 "%tpc", "%tnpc", "%tstate", "%tt", "%tick", "%tba", "%pstate", "%tl",
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33 "%pil", "%cwp", "%cansave", "%canrestore", "%cleanwin", "%otherwin", "%wstate", "%fq"
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34 };
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35
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36 protected static String getPrivilegedRegisterName(int regNum) {
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37 if ((regNum > 15 && regNum < 31) || regNum > 31)
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38 return null;
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39 return (regNum == 31)? "%ver" : regNames[regNum];
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40 }
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41
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42 final protected int regNum;
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43
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44 protected abstract String getDescription();
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45
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46 protected SPARCV9PrivilegedRegisterInstruction(String name, int regNum) {
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47 super(name);
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48 this.regNum = regNum;
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49 }
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50
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51 public int getPrivilegedRegisterNumber() {
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52 return regNum;
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53 }
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54
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55 public String asString(long currentPc, SymbolFinder symFinder) {
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56 return getDescription();
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57 }
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58 }
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